linux-kernel - [PATCH v2 00/12] Tegra XHCI controller ELPG support

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Date:   Mon, 31 Aug 2020 12:40:31 +0800
From:   JC Kuo <jckuo@...dia.com>
To:     <gregkh@...uxfoundation.org>, <thierry.reding@...il.com>,
        <robh@...nel.org>, <jonathanh@...dia.com>, <kishon@...com>
CC:     <linux-tegra@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <nkristam@...dia.com>, JC Kuo <jckuo@...dia.com>
Subject: [PATCH v2 00/12] Tegra XHCI controller ELPG support

Tegra XHCI controler can be placed in ELPG (Engine Level PowerGated)
state for power saving when all of the connected USB devices are in
suspended state. This patch series includes clk, phy and pmc changes
that are required for properly place controller in ELPG and bring
controller out of ELPG.

JC Kuo (12):
  clk: tegra: Add PLLE HW power sequencer control
     v2: no change
  clk: tegra: don't enable PLLE HW sequencer at init
     v2: no change
  phy: tegra: xusb: t210: rearrange UPHY init
     v2: no change
  phy: tegra: xusb: t210: add lane_iddq operations
     v2: no change
  phy: tegra: xusb: add sleepwalk and suspend/resume
     v2: no change
  soc/tegra: pmc: provide usb sleepwalk register map
     v2: make tegra_pmc_regmap_readl() and tegra_pmc_regmap_writel()
         static
  arm64: tegra210: XUSB PADCTL add "nvidia,pmc" prop
     v2: no change
  phy: tegra: xusb: t210: support wake and sleepwalk
     v2: no change
  phy: tegra: xusb: t186: support wake and sleepwalk
     v2: no change
  arm64: tegra210/tegra186/tegra194: XUSB PADCTL irq
     v2: no change
  usb: host: xhci-tegra: unlink power domain devices
     v2: no change
  xhci: tegra: enable ELPG for runtime/system PM
     v2: no change

 arch/arm64/boot/dts/nvidia/tegra186.dtsi |    1 +
 arch/arm64/boot/dts/nvidia/tegra194.dtsi |    1 +
 arch/arm64/boot/dts/nvidia/tegra210.dtsi |    2 +
 drivers/clk/tegra/clk-pll.c              |   12 -
 drivers/clk/tegra/clk-tegra210.c         |   51 +
 drivers/phy/tegra/xusb-tegra186.c        |  656 ++++++++
 drivers/phy/tegra/xusb-tegra210.c        | 1953 +++++++++++++++++-----
 drivers/phy/tegra/xusb.c                 |   86 +-
 drivers/phy/tegra/xusb.h                 |   23 +-
 drivers/soc/tegra/pmc.c                  |   89 +
 drivers/usb/host/xhci-tegra.c            |  577 +++++--
 include/linux/clk/tegra.h                |    2 +
 include/linux/phy/tegra/xusb.h           |   13 +
 13 files changed, 2957 insertions(+), 509 deletions(-)

-- 
2.25.1